Patents by Inventor Walter H. Christiansen

Walter H. Christiansen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Epoxy resin compositions, processes utilizing same and articles made therefrom
    Patent number: 7592067
    Abstract: Disclosed are epoxy resin compositions which include an alkali metal containing cure accelerator. The alkali metal containing cure accelerators are preferably alkali metal hydroxides, alkoxides, carboxylates, or alkali metal salts. Articles prepared from the resin compositions of the invention exhibit enhanced thermal properties, and similar non-thermal properties, when compared to articles prepared from compositions including other accelerators such as imidazoles. The resin compositions of the invention may be used for any purpose, but are particularly suited to be utilized in the manufacture of laminates for printed circuit boards and non-electrical structural applications.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: September 22, 2009
    Assignee: Hexion Specialty Chemicals, Inc.
    Inventors: Walter H. Christiansen, Larry S. Corley, Carlton E. Ash
  • Epoxy resin compositions, methods of preparing, and articles made therefrom
    Publication number: 20040147711
    Abstract: Epoxy resin compositions including a boron atom containing compound, and preferably a multiple boron atom containing compound, are disclosed. The resin compositions exhibit enhanced properties such as cure time and glass transition temperature “Tg” and are particular suited to be utilized in the manufacture of composites, especially prepregs used for the manufacture of composite structures.
    Type: Application
    Filed: January 23, 2003
    Publication date: July 29, 2004
    Inventors: Walter H. Christiansen, Larry S. Corley